Sesame, Openwork and Personal Touch saw the number of complaints against them rise in the final half of last year, according to data compiled by the Financial Conduct Authority (FCA).
Sesame received 1,978 complaints in the last half of 2012, up from 1,509 in the first half of the year, an increase of 31%.
Restricted network Openwork had 710 complaints opened in the last half of 2012, up from 647 in the first half of the year, a rise of 9.7%.
Personal Touch Financial Services had 523 complaints against it opened in the second half of last year. There are no figures for the first half of 2012, which means the company received fewer than 500 complaints.
Barclays bank has been named as the FCA's most complained about firm for the second half of last year.
The figures show that there were 3,422,384 complaints in the period, an increase of 1% on the first half of 2012.
The top five most complained about financial firms, in terms of the number of complaints opened in the second half of 2012, are:
1. Barclays bank - 414,302 (a decrease of 6% since the first half of 2012)
2. Lloyds TSB bank Plc - 349,386 (a decrease of 19% since the first half of 2012)
3. Bank of Scotland Plc - 338,912 (a decrease of 7% since the first half of 2012)
4. MBNA Limited - 270,486 (a decrease of 3% since the first half of 2012)
5. Santander UK Plc - 237,923 (a decrease of 1% since the first half of 2012)
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